a:5:{i:0;s:3:"uid";i:1;s:8:"username";i:2;s:8:"password";s:3:"_pk";s:3:"uid";s:5:"_type";a:3:{s:3:"uid";s:16:"int(10) unsigned";s:8:"username";s:8:"char(20)";s:8:"password";s:8:"char(32)";}}